Fixing device

Abstract

A fixing device used for fixing a pivot shaft includes a latching member and a fastening member. The latching member has a hollow conical latching portion. The fastening member defines a conical hole corresponding to the conical latching portion of the latching member. The latching member is capable of deforming elastically along a radial direction, and the fastening member is tightly sleeved on the latching portion of the latching member.

What is claimed is: 
     
       1. A fixing device, comprising:
 a latching member having a latching portion and a mounting portion coaxially formed with and surrounding the latching portion, the latching portion is hollow and conical, the latching portion comprises a conical outside wall and a threaded inside wall, the mounting portion comprises a bottom wall radially extending from one end of the outer peripheral of the outside wall of the latching portion; 
 a fastening member defining a conical hole corresponding to the conical latching portion of the latching member; and 
 a plurality of connecting members, wherein the latching member is capable of deforming elastically along a radial direction thereof, and the fastening member is tightly sleeved on the latching portion of the latching member, the bottom wall of the mounting portion defines a plurality of connecting holes therein, the fastening member defines a plurality of fixing holes corresponding to the plurality of connecting holes of the latching member, and the plurality of connecting members pass through the plurality of fixing holes of the fastening member and are fixed to the plurality of connecting holes of the latching member; 
 wherein the conical hole of the fastening member has a conical inner wall having a substantially same dimensions as that of the outside wall of the latching portion of the latching member, the conical inner wall of the fastening member tightly resists against the conical outside wall of the latching portion; 
 wherein the mounting portion further comprises a through hole defined through the bottom wall to coaxially communicate with the latching portion; an inner diameter of the latching portion decreases along an axial direction away from the bottom wall; 
 wherein the mounting portion further comprises a peripheral wall extending from an outer peripheral edge of the bottom wall, and coaxially positioned around the outside wall of the latching portion, the peripheral wall, the bottom wall and the outside wall of the latching portion cooperatively define an assembling chamber, and the fastening member is mounted to and received within the assembling chamber of the latching member. 
 
     
     
       2. The fixing device of  claim 1 , wherein the latching portion defines a plurality of deformation slots through the outer periphery of the latching portion axially. 
     
     
       3. A fixing device for fixing a pivot shaft, comprising:
 a latching member sleeved on one end of the pivot shaft, the latching member comprising a hollow conical latching portion defining a plurality of deformation slots through an outer periphery of the latching portion axially and a mounting portion coaxially formed with and surrounding the latching portion, the latching portion comprises a conical outside wall and a threaded inside wall, the mounting portion comprises a bottom wall radially extending from one end of the outer peripheral of the outside wall of the latching portion; 
 a fastening member defining a conical hole corresponding to the conical latching portion of the latching member; and 
 a plurality of connecting members, wherein the fastening member is tightly sleeved on and resisting against the latching portion of the latching member, the bottom wall of the mounting portion defines a plurality of connecting holes therein, the fastening member defines a plurality of fixing holes corresponding to the plurality of connecting holes of the latching member, and the plurality of connecting members pass through the plurality of fixing holes of the fastening member and are fixed to the plurality of connecting holes of the latching member; 
 wherein the conical hole of the fastening member has a conical inner wall having a substantially same dimension as that of the outside wall of the latching portion of the latching member; the conical inner wall of the fastening member tightly resists against the conical outside wall of the latching portion; the pivot shaft comprises a main shaft portion and a threaded portion formed at one end of the main shaft portion, the threaded inside wall of the latching portion of the latching member engages with the threaded portion of the pivot shaft, 
 wherein the mounting portion further comprises a though hole defined through the bottom wall to coaxially communicate with the latching portion; an inner diameter of the latching portion decreases along an axially direction away from the bottom wall; 
 wherein the mounting portion further comprises a peripheral wall extending from an outer peripheral edge of the bottom wall, and coaxially positioned around the outside wall of the latching portion; the peripheral wall, the bottom wall and the outside wall of the latching portion cooperatively define an assembling chamber, and the fastening member is mounted to and received within the assembling chamber of the latching member.